When the shape is restored, the elements are loaded at the end.

[Kadyn]

There are two forms, one of which is a form filled with one painting (Form3), the second (Form1) - the mein. When applied to the button in Form1, the mein shall be soaked as to open F3:

Form3 formButton = new Form3();
formButton.Owner = this;
formButton.Show();
formButton.Opacity = 0;
while (this.Opacity != 0)
{
    Thread.Sleep(30);
    this.Opacity -= 0.1;
}
while (formButton.Opacity != 1)

{

Thread.Sleep(30);

formButton.Opacity += 0.1;

}

The problem is, when the cycle arrives, there's nothing in shape other than a piece hole. The elements themselves are downloaded only when the programme leaves the cycle.

Here's the reversal of the mein:

formMain.Opacity = 0;

formMain.Show();

while (formMain.Opacity != 1)

{

Thread.Sleep(30);

formMain.Opacity += 0.1;

}

while (this.Opacity != 0)

{

Thread.Sleep(30);

this.Opacity -= 0.1;

}

Maybe someone has a simple or not very simple solution to this problem. I would like the entire interface to be smooth, not just shape, and end instantly.

[Alberto]

As already stated in the commentaries, cycles while c Thread.Sleep inside work in the GUI flow, which leads to the freezing of shape.

Let's do it with a timer.

Timers on the dot have a few things different, we're gonna need the one in the name space. System.Windows.Forms.Timer - he can work directly with the controllers, his event. Tick It's the same flow.

Add two fields to your basic form class:

System.Windows.Forms.Timer timer;
Form3 formButton;

And the processor of the timer event:

private void Timer_Tick(object sender, EventArgs e)
{
    if (Opacity > 0)
        this.Opacity -= 0.1;
    else if (formButton.Opacity < 1)
        formButton.Opacity += 0.1;
    else
    {
        timer.Stop();
        timer.Tick -= Timer_Tick;
    }
}

Now your code will look as follows:

formButton = new Form3();
formButton.Owner = this;
formButton.Show();
formButton.Opacity = 0;
timer = new System.Windows.Forms.Timer();

timer.Interval = 30;

timer.Tick += Timer_Tick;

timer.Start();

Please note that the properties Opacity shape double♪ So I replaced the exact comparisons. != 0 and != 1 ♪ > 0 and < 1 - it has to do with the specificity of the presentation of the substance numbers - the exact comparison may not work.

Also draw attention to the need to list the timer from the event: timer.Tick -= Timer_Tick; - it's necessary to avoid memory leaks.

If you wish, a timer can be created in a designer of shape, giving it the necessary properties and events.